Amanda Knox appears on ABC tonight for an hour-long interview with Diane Sawyer.

ABC is already salting the airwaves with cookies of the interview to come with Knox. The Seattle woman and UW student was convicted of killing her roommate in Italy, spent time in prison and then was acquitted.

Now she faces a retrial.

Sawyer promises that the interview will include a full range of emotions.

"I was in the courtroom when I was called a devil," Knox tells Sawyer in a short video clip of the interview.

"I felt like after crawling through a field of barbed wire and finally reaching what I thought was the end, it just turned out that it was the horizon. And I had another field of barbed wire that I had ahead of me to crawl through."

The interview comes as Knox's book, "Waiting to Be Heard," goes up for sale.